mod_lua: fix visibility support (FSCORE-302)

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@12240 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/languages/mod_lua/lua/luaconf.h

@@ -161,7 +161,8 @@
 
 #else
 
-#if (defined(__GNUC__) || defined(__SUNPRO_CC) || defined (__SUNPRO_C)) && defined(HAVE_VISIBILITY)
+#if (defined(__GNUC__) || defined(__SUNPRO_CC) || defined (__SUNPRO_C)) && defined(HAVE_VISIBILITY) && (defined(LUA_CORE) || defined(LUA_LIB)
+)
 #define LUA_API	__attribute__((visibility("default")))
 #else
 #define LUA_API		extern